Meckler, 1993
Buku Referensi
Starrett, Robert, author
Boyd & Fraser, 1994
Buku Teks
Direktorat Jenderal Pendidikan Tinggi FMIPA ITB, [date of publication not identified]
Buku Teks
Universitas Indonesia, 2004
UI - Tugas Akhir
Bradley, Phil, author
Aslib, 1997
Buku Teks